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Cat losing weight, thirsty, hair loss after new dog: stress or illness?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Female | spayed | 9 years and 1 month old | 7 lbs

My cat is suddenly losing weight, experiencing some hair loss above her eyes and has excessive thirstiness. We recently just adopted a big dog. Is this stress or a more serious underlying problem? I’ve included photos of what she normally looks like vs now.

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1 Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on June 8th, 2020

Since you adopted a new dog, this could be due to stress but it could also be due to a medical condition like hyperthyroidism or diabetes. I recommend having Rosie seen by a vet for a geriatric blood panel and urinalysis. I hope this helps!

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